Fix SEO skills 19-34 bugs, add slash commands, enhance reference-curator (#3)

* Fix SEO skill 34 bugs, Korean labels, and transition Ahrefs refs to our-seo-agent

P0: Fix report_aggregator.py — wrong SKILL_REGISTRY[33] mapping, missing
CATEGORY_WEIGHTS for 7 categories, and break bug in health score parsing
that exited loop even on parse failure.

P1: Remove VIEW tab references from skill 20, expand skill 32 docs,
replace Ahrefs MCP references across all 16 skills (19-28, 31-34)
with our-seo-agent CLI data source references.

P2: Fix Korean labels in executive_report.py and dashboard_generator.py,
add tenacity to base requirements, sync skill 34 base_client.py with
canonical version from skill 12.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

* Add Claude Code slash commands for SEO skills 19-34 and fix stale paths

Create 14 new slash command files for skills 19-28, 31-34 so they
appear as /seo-* commands in Claude Code. Also fix stale directory
paths in 8 existing commands (skills 12-18, 29-30) that referenced
pre-renumbering skill directories.

Update .gitignore to track .claude/commands/ while keeping other
.claude/ files ignored.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

* Add 8 slash commands, enhance reference-curator with depth/output options

- Add slash commands: ourdigital-brand-guide, notion-writer, notebooklm-agent,
  notebooklm-automation, notebooklm-studio, notebooklm-research,
  reference-curator, multi-agent-guide
- Add --depth (light/standard/deep/full) with Firecrawl parameter mapping
- Add --output with ~/Documents/reference-library/ default and user confirmation
- Increase --max-sources default from 10 to 100
- Rename /reference-curator-pipeline to /reference-curator
- Simplify web-crawler-orchestrator label to web-crawler in docs

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>

.claude/commands/notebooklm-agent.md

@@ -0,0 +1,62 @@
+---
+description: Q&A agent using NotebookLM's Gemini-powered analysis with source citations
+---
+
+# NotebookLM Agent
+
+Q&A agent that answers questions using NotebookLM's Gemini-powered analysis with source citations.
+
+## Prerequisites
+
+```bash
+pip install notebooklm-py
+playwright install chromium
+notebooklm login  # One-time auth
+```
+
+## Commands
+
+```bash
+# List notebooks
+notebooklm list
+
+# Set context
+notebooklm use <notebook_id>
+
+# Ask questions
+notebooklm ask "What are the key findings?"
+notebooklm ask "Elaborate on point 2"  # continues conversation
+notebooklm ask "New topic" --new       # new conversation
+
+# With citations (JSON output)
+notebooklm ask "Summarize" --json
+
+# Query specific sources
+notebooklm ask "Compare" -s source1 -s source2
+```
+
+## Autonomy
+
+**Auto-run:** `list`, `status`, `source list`, `ask`
+**Ask first:** `delete`, `source add`
+
+## JSON Output Format
+
+```json
+{
+  "answer": "Response with [1] [2] citations",
+  "references": [
+    {"source_id": "...", "citation_number": 1, "cited_text": "..."}
+  ]
+}
+```
+
+## Error Recovery
+
+| Error | Fix |
+|-------|-----|
+| No context | `notebooklm use <id>` |
+| Auth error | `notebooklm login` |
+
+## Source
+Full details: `custom-skills/50-notebooklm-agent/code/CLAUDE.md`